Sizing vat



Feb. 15, 1938. p1. A. BA'II'CHELDER' SIZING VAT Original Filed June 5, 1936 2 Shegts-Sheet l 72.. /4 Zc/zeZder, I

Feb. 15, 1938. N. A. B'ATCHELDER s1z1 ue VAT 2 Sheet s-Sheet 2 Opiginal Filgd June 5, 1936 Patented Feb. 15, 1938 PATENT OFFICE SIZING VAT- Nelson Allen Baichelder, Welland, Ontario,

Canad Original application June 5, 83,791. Divided and this 1936, Serlal No. application October 26, 1936, Serial No. 107,577

7 Claims.

This invention relates to sizing vats for use in connection with yarn dyeing and treating machines wherein the yarns are fed in a sheet or ribbon continuously through a series of treatment instrumentalities, the yarn entering the machine at one end in an undyed state and being wound on a beam at the opposite end of the machine in a completely treated condition so that it is ready for weaving or other textile manufacture.

The present application consists of a division of my prior application for patent on Process and machine for yarn dyeing, dressing and loom beaming, filed June 5, 1936, and bearing the Serial Number 83,791.

In prior machines for the purpose set forth in the application of which this is a division no means were provided at the sizingvat for feeding the yarn through this vat but, after leaving the first series of treatment vats, the sheet or ribbon of yarns was pulled through all the rest of the machine by rotationof the beam at the extreme end of the machine. This placed heavy stresses on the yarns with the consequence that much breakage ensued, especially at the sizin vat where the yarns were in wet condition and thus more liable to break.

One important object of the invention is to provide a novel arrangement of sizing vat having means for advancing the sheet or ribbon by suitable power means, thus relieving part of the stresses due to beaming.

A second object of the invention is to provide a novel sizing vat having a series of power feeding means spaced along the vat so that, from the time the sheet or ribbon is acted upon by the first of such means until it leaves the vat, the wet yarns will be under substantially no stress.

In the treatment of yarn for dyeing it is advisable to dry the yarn before it enters the sizing vat and then to again dry it after it has been sized.

To dry the yarn it is customary to lead it over one or more drying cylinders or rollers which are revolved by pulling the yarn over such rollers. Under the usual manner of performing this drying the tension necessary to rotate the drier which dries the yarn before it enters the sizing vat is exerted through the wet yarns in such vat. Consequently there is much breakage of this wet yarn. Further, if the beaming at the end of the machine is relied onto pull the yarn over both driers and through the sizing vat, much resistance against the ,forward movement of the yarn occurs and much breakage also occurs between the second drier and the beam.

A third important object of the invention is to provide a novel arrangement of driers and sizing vat wherein the first dryer is actuated by tension on the yarn from feed means at the sizing vat and wherein the yarn between such feed means and the second drier is under substantially no tension so that, so far as the driers and sizing vat are concerned, the tension on the yarn between the second drier and beam is that due to the second drier alone.

A fourth important object of the invention is to provide a novel dyeing vat arrangement whereby the dipping rolls used in such vats may be vertically adjusted from the exterior of the vat.

A fifth important object of the invention is to provide a novel means, in such a vat, whereby to simultaneously adjust both ends of a clipping roll by adjusting means operable from the exterior of the vat.

A sixth important object of the invention is to provide a novel sizing vat arrangement whereby to ensure uniform penetration of the various strands or yarn by the size.

A seventh important object of the invention is to provide novel means whereby the extent of penetration of the size by the yarn can bepontrolled.

With the above and other objects in view as will be hereinafter apparent, the invention consists in general of certain novel details of construction and combinations of parts hereinafter fully described, illustrated in the accompanying drawings and. specifically claimed.

In the accompanying drawings like characters of reference indicate like parts in the several views, and: a

Fig. 1 is a plan view of a portion of a dyeing machine showing the size vat and first and second drying cylinders. in general outline, much of the detail being omitted to avoid confusion.

Fig. 2 is a side elevation of the construction shown in Fig. 1.

Fig. 3 is a side elevation of a sizing vat or tank v as constructed in accordance with this invention. Fig. 4 is a section partly broken away on the line 4-4 of Fig. 3.

Fig. 5 is a fragmentary side elevation of the vat or tank opposite to that shown in Fig. 3.

Fig. 6 is a fragmentary side elevation on the line 8-8 of Fig. 4. r Fig. '7 is a diagram showing the roll arrangement and the run of the yarn in passing through such a vat. As shown in general in Figs. 1 and 2 there is disclosed a portion of a machine frame whereon is supported a primary drier A, a sizing means B and a secondary drier C.

The frame includes two side frame members i0. On these side members is supported a pair of opposed frames carrying suitable bearing arrangements i2 for supporting the journals |3 of a.

drying cylinder l4. On top of the frames II are bearings l 5 supporting the journals l6 of a pair of guide rollers IT. For the drier C there is provided a pair of frames l8 which support bearings l8 carrying the journals of a drying cylinder 2| similar to the cylinder l4. Fans 22 driven by belts 23 running over pulleys 24 are arranged adjacent the cylinders I4 and 2| to blow air against the yarn on the cylinders and thus assist the dry- 'ing operation. Bearings 25 carried by one frame side It support a drive shaft 26 for driving the mechanism of the vat. The belts 23 and shaft 25 are driven from the main drive of the machine. The travel of the yarn is indicated by the arrow provided line and the direction of travel of the cylinders l4 and 2| is indicated by arrows in Fig. 2.

Forward of the cylinder I4 is a set of three tensioning or evener rolls 2! which have their journals 28 supported in triangular formation in bearings 29 supported from the sides I 0. The sheet or tape of strands passes over the top roller 21, around that roller and back to the upper side of the rear roller 21 and from under this last over and down from the front roller 2].

From the front roller 21 the sheet or ribbon passes to the sizing vat or tank 30. This vat or tank is of ordinary rectangular form and its upper edge is flanged outwardly by flanges 3|'. The shaft 26 extends along the left side of the tank or vat 3|! and has bevel gears 32 fixed thereon. Cast or otherwise formed on each side of the vat is a set of brackets 33 whereon' are fixed bearings 34 which are arranged in aligned pairs. The walls of the tank are provided with suitable openings aligned with these bearings so that the journals 35 of the lower squeeze rolls 36 may pass through such openings and be journalled in said bearings. The journals on the left side of the machine carry bevel gears 31 which mesh with the gears 32. Mounted on the flanges 3|, directly above the bearings 33 are castings 38 each having a vertical slot 39 to receive one of the journals 4B of an upper squeezing roll 4| which bears, by its weight, downwardly toward the respective roll 36. These castings have sockets 42 on one side of the slots 39 so that the upper rolls 4|, may, if desired, be lifted and positioned with their journals in said sockets to hold the rolls 4| out of engagement with the lower rolls 30. Also, each casting 38 carries a pivot ear 43 and to certain of the cars 43 is pivoted one end of a lever 44 which ex-. tends over and bears on a journal 40. From the free end of each lever extends an arm 45 from which is suspended a hanger 46 carrying weights 41. By regulating the weights 4'! pressure of the upper rolls on the lower may be adjusted to suit the particular treatment or sizing desired.

closely against the sides of the vat 30. These bars 5| are connected at their upper ends by cross pieces 52 with supporting bars 53 sliding through guides 54 on the outside of the tank or vat 30. The lower ends of the bars 53 are formed as racks 55 wherewith mesh gears 56 mounted on shafts 51 supported in bearings 58 secured to the tank or vat 31!. On each of the shafts 51 is fixed a worm wheel 59 wherewith meshes a worm 34. Each pair of worm wheels 59 lies opposite each other so that a pair of the worms i0 is carried on a single shaft 6| which extends beneath the vat 30 from side to side thereof, being supported in bearings 62. On one end of each shaft 6| is fixed an operating crank 63 by means of which the shaft 6| may be rotated to raise each end of the respective roll simultaneously.

In order to prevent sedimentation and to keep the size in the tank 30 at the proper temperature there is provided preferably beneath each roll 43, a perforated pipe 64 connected bysuitable piping 55 to the steam supply. The perforations in the pipe 54 are directed downwardly to scour the bottom of the vat.

In order to keep the size in a constantly uniform condition a circulating pump (not shown) is connected with the outlet of the size tank which, through suitable piping returns the size to a supply tank (not shown). The size is gravity fed from such supply tank through suitable piping and through a valve which is throttled to the necessary degree of fiow.

The adjustable dipping rolls just described enable the operator to control the length of travel of the strand sheet or ribbon through the sizing bath and thus to regulate the amount of size absorbed by the material.

By means of this arrangement the primary drier has its cylinder rotated by the friction of the yarn against its periphery, the yarn being drawn forward by the action of the first pair of squeezing rolls 36 and 5 I. Since the several pairs of squeezing rolls rotate at the same peripheral speed there will be no appreciable tension in the passage of the yarn from one pair of rolls to the next. Thus the yarn issues from between the v final pair of squeezing rolls in an untensioned state to pass around a guide roll 66 and thence to the cylinder 2|. For this reason the tension exerted on the yarn for rotating this cylinder 2| is only suficient to cause this rotation of the cylinder 2|.

There has thus been provided a simple and efficient device of the kind described and for th purpose specified. a

It is obvious that minor changes may be made in the form and construction of the invention without departing from the material spirit thereof. It is not, therefore, desired to confine the invention to .the exact form herein shown and described, but it is desired to include all such as properly come within the scope claimed.

Having thus described the invention, what is claimed asnew, is:

1. In a machine of the class described, a sizing vat, a plurality of dipping rolls located within said sizing vat, means exterior of the vat for raising and lowering the dipping rolls, and squeezing rolls in said vat arranged in pairs alternating with the dipping rolls, each pair being located forwardly of a respective dipping roll.

2. In a machine of the class described, a sizing vat, a plurality of dipping rolls located within said sizing vat, means exterior of the vat for raising and lowering the dipping rolls, squeezing rolls in said vat arranged in pairs alternating with the dipping rolls, each pair being located forwardly of a. respective dipping roll, and power means driving one of each pair of said squeezing rolls at uniform peripheral speeds.

3. In a machine of the kind described, a sizing vat having side walls, inverted U-shaped members straddling said side walls and arranged in pairs with the members of each pair disposed opposite each other, said members having aligned bearings on the lower ends of their inner legs, dipping rolls journalled in said bearings, and means for engaging the outer legs of each opposed pair to. move the pair of members vertically and simultaneously.

4. In a machine of the kind described, a sizing vat having side walls,- inverted U-shaped members straddling said side walls and arranged in pairs with the members of each pair disposed opposite each other, said members having aligned bearings on the lower ends of their inner legs, dippings rolls journalled in said bearings, racks formed on the outer legs of said members, and gearings connecting the racks of each pair.

5. In a machine of the kind described, a sizing vat having side walls, inverted U-shaped members straddling said side walls and arranged in pairs with the members of each pair disposed opposite each other, said members having aligned hearings on the lower ends of their inner legs, dipping rolls journalled in said bearings, racks formed on the outer legs of said members, worm shafts each passing transversely beneath. said vat and rotatably supported therefrom, a pair of worms on the end portions of each shaft, a pair of short shafts for each of said worm shafts,

. said short shafts being journalied to the sides of said vat, a worm wheel on each short shaft meshing with one of the worms of the worm shaft, a gear on each of the short shafts meshing with one ofsaid racks, and a crank on one each worm shaft. 1

6. In a machine of the kind described, a sizing vat havingside walls, inverted U-shaped members straddling said side walls and arranged in pairs with the members of each/ pair disposed opposite each other, said members having aligned bearings on the lower ends of their inner legs, dipping rolls journalled in said bearings, means for en" end of gaging the outer legs of each opposed pair to move the pair of members vertically and simultaneously, and squeezing rolls arranged in pairs, each pair being located forwardly of a dipping roll.

'2. In a machine or the kind described, a sizing vat having side walls, inverted U-shaped members straddling said side walls and arranged in'pairs with the members of each pair disposed opposite each other, said members having aligned bearings on the lower ends of their inner legs, dipping rolls journalled in said hearings, means for engaging the outer legs of each opposed pair to move the pair of members vertically and simultaneously, squeezing rolls arranged in pairs, each pair being located forwardly of a. dipping roll, and power means driving one of each pair of said squeezing rolls at uniform. peripheral speeds. 

